不同繁殖条件对虎皮鱼受精卵数量的影响

摘要

虎皮鱼是一种常见的小型鲤科观赏鱼，其繁殖条件与大多鲤科鱼类没有很大区别。一般条件下虎皮鱼受精卵的数量并不可观．满足不了市场的需求。对比不同繁殖条件下虎皮鱼产卵的数量，结果表明：鱼巢情况和放置顺序都会导致受精卵数量的明显差异．确定了放置鱼网和先放雌鱼相结合为最优条件，这对节约成本、指导生产实践和争取更大的经济效益有着十分重要的现实意义。%Barbus tetrazona is a kind of diminutive ornamental fish which is often seen by people,there is little difference in their breeding between Barbus tetrazona and other Cyprinidate species.As usually ,Barbus tetrazonct is not so considerable in the aspect of quantity and can＇t meet the market demand.The paper made a compare of spawns in different conditions ,the results showed that during the experiment the condition ,fish nest and the sequence of placing led to the differences of the spawns quantity that was very obvious.The optimal conditions were fish net and the females placed first,which had practical significance in directing producing practice and striving for bigger economic benefit.